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K/sub l/3/sup +/ decays involving finite neutrino mass and mass mixing

Journal Article · · Phys. Rev. D; (United States)
K/sub l/3/sup +/ decays with the inclusion of effects of finite neutrino mass and mass mixing have been investigated. Predictions have been obtained for (i) pion energy spectrum, (ii) decay probability, (iii) ..pi..-l ( = e,..mu..) angular correlations, (iv) ..pi..-l energy correlations, (v) lepton energy spectrum, (vi) ..pi..-..nu../sub i/ (i = e,..mu..,tau) angular correlations, and (vii) ..pi..-..nu../sub i/ energy correlations. Finite-mass effects are substantial in all the parameters discussed, whereas the mixing effects are discernible only in ..pi..-..nu../sub i/ angular and energy correlations. The mass limits for the ..nu../sub 3/ mass for hierarchical mixing are found to be 174.0 +- 0.9 MeV and 120 +- 2 MeV for electronic and muonic modes, respectively, with nearly identical values for Kobayashi-Maskawa mixing.
Research Organization:
Department of Physics, University of Rajasthan, Jaipur-302004, India
OSTI ID:
5859627
Journal Information:
Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 31:9; ISSN PRVDA
Country of Publication:
United States
Language:
English